【实例简介】
利用MatLab-Simulink 仿真
了不同减振器阻尼系数和不同悬架刚度下车身加速
度、悬架动挠度、车轮动载分别对于路面速度激励振动
响应的幅频特性, 从而为半主动悬架和主动悬架的优
化提供必要的理论支持.关于汽车振动与MATLAB的案例，大家都可以下载看看，
3
M at lab
47
2基于 Simulink车辆振动响应幅频
特性分析
Simulink
Add2
To Workspace
S
S
1/m, Integrator Integrator/ To
o Workspace2
Add1
k
Add
k
Add3 1/m Integrator Integrator
To Workspace 1
Add4
Derivative To Workspace3
Random
To Workspace
Number
Simulink
2.2
2000N/(m/s)
k
16300N/m10000
1000N/(m/s)
N/m
6、7
21994-2014ChinaAcademicJournalelEctronicPublishinghoUseAllrightsreservedhttp://www.cnki.net
°48°
2011
……计计……
c=1000N/(m/s)Fi
……+…+-计+……+…==c=2000Nm/s)
k=16300N/m
4+
=k=10000N/m
4-…今…+—
…4-}-4
-11
艾也
÷…+-
10
:::
10
激振频率H
10
激振频率|H
图3车身加速度对于路面速度激励的幅频特性
图6车身加速度对于路面速度激励的幅频特性
c=1000N(m/s
=·c=2000N/(m/s)
10°…
1…1-
三
馨
}-1-44}H4
k=16300N/m
k=10000N/m
10
10
10
激振频率/Hz
激振频率|Hz
图4车轮动载对于路面速度激励的幅频特性
图7车轮动载对于路面速度激励的幅频特性
:
C=1000N(m/s)
k=16300N/m
空…
::=200m0)1
A
#:k=1000Nm
10鞋装
1°目
非
…4…
暮10目
……
10时时排时计e时:
10
10
10
10
10
10
10
微振频率|Hz
激振频率Hz
图5悬架动挠度对于路面速度激励的幅频特性
图8悬架动挠度对于路面速度激励的幅频特性
?1994-2014ChinaAcademicJournalElectronicPublishingHouseAllrightsreservedhttp://www.cnki.net
3
M at lab
49
3结语
1/4
Simulink
[η靳跷雄.汽车振动分杌M].上海:同济大学出版社,2002:92-9
[2余志生.汽车理谢M].北京:机械工业出版社,2006230-232
[3丁玉庆.汽车振动系统的简化及数学模型的建立[J.南京理工大学学报,2001,25(4:391-394
[4朱明武,李永新测试信号处理与分析[M].北京:北京航空航天大学出版社,206:92-10
S李丽莉,过永德汽车振动系统的简化及其响应模拟].华北工学院学报,195,16(2):147-149.
[常巍,谢光军,黄朝风. Matlab2007基础与提髙M].北京:电子工业出版社,2007:253-257.
Amplitude- requency Characteristic Analysis of Vehicle vibration
Response Based on Matlab
ChEN Jun-ie li Zhao-kai, fan Chuan-shuai, LIU Wei
Chang an University, Xi an 710061, China)
Abstract: In order to research amplitude- frequency characteristic of vehicle vibration response, using the lagrange e
quation to establish quarter vehical geometry model and design the simulation prog ram in Simulink according to the above
mathematical model. The result s indicate that the proper increasing of shock absorber damping can effectively reduce the
dy namic load between the wheels and pavement. But, the increasing of Suspension s tiffness makes the ride comfort go bad
The conclusion of this paper can provide some reference value with which can improve the vehicle smooth and safety
Key words: vehicle vibralion; vehicle running smo othness; MalLab-Simulink; am plitude-requency char
acteria tic
?1994-2014ChinaAcademicJournalElectronicPublishingHouseAllrightsreservedhttp://www.cnki.net
【实例截图】
【核心代码】
发布者：全栈程序员-站长，转载请注明出处：https://javaforall.net/184089.html原文链接：https://javaforall.net
